The SIX is a non-profit Internet Exchange Point in Seattle, Washington. We provide reliable and low-cost interconnection between member networks in the Northwest United States and beyond. Networks connect at speeds from 1 to Nx100 Gbps.

Quick Facts:

  • 211 ASNs, 229 routers, 206 members
  • 10 member-facing 100GbE ports
  • 221 member-facing 10GbE ports
  • 70 member-facing GigE ports
  • 597 Gbps of peak traffic
  • 3+ terabits of connected member capacity
 Day Aggregate Traffic

General Announcements

2016-09-01

Updated port counts over time can be found here: csv png xls
2016-08-26 New switches - Large Netflix donation - Fundraising
2016-05-09

IPv6 and frame size charts have been added to the 5-minute sampling aggregate traffic page. 1-minute sampling is now also available.
2016-01-01

The SIX is @seattleix on Twitter.
2015-06-04

The Euro-IX IXP Member List JSON Schema is now implemented.
2015-01-01

10GbE one-time port fee reduced from $5,000 to $3,000.
2014-09-30

100/40GbE port fees added to join page.
2014-07-23

"Speed" column added to participants page and CSV/TSV files. Thanks goes to PeeringDB.com for this data.
2014-07-22

Route servers are now available. Connect and enjoy!
2011-05-01

"Approx Prefixes" column added to participants page and CSV/TSV files. Thanks goes to PeeringDB.com for this data.
2010-06-21

A multi-year aggregate traffic graph has been added to the bottom of the aggregate traffic page.
2009-07-24

"General Policy" column added to participants page and CSV/TSV files. Thanks goes to PeeringDB.com for this data.
2009-07-17

Added text files containing daily average and maximum traffic levels. Updated daily.
2009-07-13

Added a Topology & Extensions page.
2009-04-03

This web site is now accessible via IPv6.
2008-12-14

The ASN entries on the participants page now link to their respective entry at PeeringDB.com. Please create and/or maintain your entry at PeeringDB.com.
2007-09-02

CSV and TSV file types are now available from the participants page.
2007-06-18

The aggregate traffic page is back up and the SIX is now compliant with the Packet Clearing House documentation BCP for exchange points.
2007-06-03

The participants page is now automatically generated. Columns may be sorted. Please report any problems to webmaster_a_t_seattleix.net.